A new study in the USA suggests the human hand may have evolved through the requirement of unarmed combat. The study controversially suggests humans may be predisposed to aggression and violence, factors that played a role in our evolution.
UFC Welterweight Champion Georges St. Pierre makes the trek to the Sport Science lab to see if he has what it takes to beat Jake Shields in the Octagon. St. Pierre showed off his stamina and punches to ESPN Sport Science's John Brenkus where he tested St. Pierre's power and speed.
Sport Science Breakdowns Shogun Rua's kick generates 2749 lbs of force
